Fix incorrect pluralisation in sar2pcp proc.nprocs metric name
Fix incorrect pluralisation in sar2pcp proc.nprocs metric name

andyvand/cygpcpfans,andyvand/cygpcpfans,andyvand/cygpcpfans,edwardt/pcp,edwardt/pcp,wuliming/pcp,aeg-aeg/pcpfans,edwardt/pcp,mbaldessari/pcp,adfernandes/pcp,wuliming/pcp,wuliming/pcp,tjanez/pcp,andyvand/cygpcpfans,aeg-aeg/pcpfans,prasincs/pcp,andyvand/cygpcpfans,prasincs/pcp,aeg-aeg/pcpfans,aeg-aeg/pcpfans,mbaldessari/pcp,andyvand/cygpcpfans,aeg-aeg/pcpfans,adfernandes/pcp,tjanez/pcp,tjanez/pcp,aeg-aeg/pcpfans,edwardt/pcp,adfernandes/pcp,tjanez/pcp,tjanez/pcp,andyvand/cygpcpfans,aeg-aeg/pcpfans,prasincs/pcp,mbaldessari/pcp,wuliming/pcp,tjanez/pcp,edwardt/pcp,tjanez/pcp,mbaldessari/pcp,adfernandes/pcp,edwardt/pcp,adfernandes/pcp,wuliming/pcp,aeg-aeg/pcpfans,prasincs/pcp,adfernandes/pcp,andyvand/cygpcpfans,edwardt/pcp,wuliming/pcp,prasincs/pcp,edwardt/pcp,prasincs/pcp,prasincs/pcp,wuliming/pcp,prasincs/pcp,mbaldessari/pcp,adfernandes/pcp,wuliming/pcp,tjanez/pcp,mbaldessari/pcp,adfernandes/pcp